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Diffstat (limited to 'local/c.h')
| -rw-r--r-- | local/c.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/local/c.h b/local/c.h new file mode 100644 index 0000000..2471209 --- /dev/null +++ b/local/c.h @@ -0,0 +1,162 @@ +/* + * This header was copied from util-linux at fall 2011. + */ + +/* + * Fundamental C definitions. + */ + +#ifndef PROCPS_NG_C_H +#define PROCPS_NG_C_H + +#include <limits.h> +#include <stdint.h> +#include <stdio.h> +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#ifdef HAVE_ERROR_H +#include <error.h> +#else +#include <stdarg.h> +#endif + +/* + * Compiler specific stuff + */ +#ifndef __GNUC_PREREQ +# if defined __GNUC__ && defined __GNUC_MINOR__ +# define __GNUC_PREREQ(maj, min) \ + ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) +# else +# define __GNUC_PREREQ(maj, min) 0 +# endif +#endif + +/* + * Function attributes + */ +#ifndef __ul_alloc_size +# if __GNUC_PREREQ (4, 3) +# define __ul_alloc_size(s) __attribute__((alloc_size(s))) +# else +# define __ul_alloc_size(s) +# endif +#endif + +#ifndef __ul_calloc_size +# if __GNUC_PREREQ (4, 3) +# define __ul_calloc_size(n, s) __attribute__((alloc_size(n, s))) +# else +# define __ul_calloc_size(n, s) +# endif +#endif + +/* + * Misc + */ +#ifndef PATH_MAX +# define PATH_MAX 4096 +#endif + +#ifndef TRUE +# define TRUE 1 +#endif + +#ifndef FALSE +# define FALSE 0 +#endif + +/* + * Program name. + */ +#ifndef HAVE_PROGRAM_INVOCATION_SHORT_NAME +# ifdef HAVE___PROGNAME +extern char *__progname; +# define program_invocation_short_name __progname +# else +# ifdef HAVE_GETEXECNAME +# define program_invocation_short_name \ + prog_inv_sh_nm_from_file(getexecname(), 0) +# else +# define program_invocation_short_name \ + prog_inv_sh_nm_from_file(__FILE__, 1) +# endif +static char prog_inv_sh_nm_buf[256]; +static inline char *prog_inv_sh_nm_from_file(char *f, char stripext) +{ + char *t; + + if ((t = strrchr(f, '/')) != NULL) + t++; + else + t = f; + + strncpy(prog_inv_sh_nm_buf, t, sizeof(prog_inv_sh_nm_buf) - 1); + prog_inv_sh_nm_buf[sizeof(prog_inv_sh_nm_buf) - 1] = '\0'; + + if (stripext && (t = strrchr(prog_inv_sh_nm_buf, '.')) != NULL) + *t = '\0'; + + return prog_inv_sh_nm_buf; +} +# endif +#endif + +/* + * Error printing. + */ +#ifndef HAVE_ERROR_H +/* Emulate the error() function from glibc */ +__attribute__((__format__(__printf__, 3, 4))) +static void error(int status, int errnum, const char *format, ...) +{ + va_list argp; + fprintf(stderr, "%s: ", program_invocation_short_name); + va_start(argp, format); + vfprintf(stderr, format, argp); + va_end(argp); + if (errnum != 0) + fprintf(stderr, ": %s", strerror(errnum)); + fprintf(stderr, "\n"); + if (status != 0) + exit(status); +} + +/* Emulate the error_at_line() function from glibc */ +__attribute__((__format__(__printf__, 5, 6))) +static void error_at_line(int status, int errnum, const char *filename, + unsigned int linenum, const char *format, ...) +{ + va_list argp; + fprintf(stderr, "%s:%s:%u: ", program_invocation_short_name, + filename, linenum); + va_start(argp, format); + vfprintf(stderr, format, argp); + va_end(argp); + if (errnum != 0) + fprintf(stderr, ": error code %d", errnum); + fprintf(stderr, "\n"); + if (status != 0) + exit(status); +} +#endif +#define xwarn(...) error(0, errno, __VA_ARGS__) +#define xwarnx(...) error(0, 0, __VA_ARGS__) +#define xerr(STATUS, ...) error(STATUS, errno, __VA_ARGS__) +#define xerrx(STATUS, ...) error(STATUS, 0, __VA_ARGS__) + +/* + * Constant strings for usage() functions. + */ +#define USAGE_HEADER _("\nUsage:\n") +#define USAGE_OPTIONS _("\nOptions:\n") +#define USAGE_SEPARATOR _("\n") +#define USAGE_HELP _(" -h, --help display this help and exit\n") +#define USAGE_VERSION _(" -V, --version output version information and exit\n") +#define USAGE_MAN_TAIL(_man) _("\nFor more details see %s.\n"), _man + +#define PROCPS_NG_VERSION _("%s from %s\n"), program_invocation_short_name, PACKAGE_STRING + +#endif /* PROCPS_NG_C_H */ |